CN111703195A - Screen printer - Google Patents
Screen printer Download PDFInfo
- Publication number
- CN111703195A CN111703195A CN202010598555.6A CN202010598555A CN111703195A CN 111703195 A CN111703195 A CN 111703195A CN 202010598555 A CN202010598555 A CN 202010598555A CN 111703195 A CN111703195 A CN 111703195A
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- CN
- China
- Prior art keywords
- screen
- mounting frame
- rubber roller
- rubber roll
- frame
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
- B41F19/007—Apparatus or machines for carrying out printing operations combined with other operations with selective printing mechanisms, e.g. ink-jet or thermal printers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
- B41F15/36—Screens, Frames; Holders therefor flat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/54—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
- B41J3/546—Combination of different types, e.g. using a thermal transfer head and an inkjet print head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2200/00—Printing processes
- B41P2200/40—Screen printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2217/00—Printing machines of special types or for particular purposes
- B41P2217/10—Printing machines of special types or for particular purposes characterised by their constructional features
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2217/00—Printing machines of special types or for particular purposes
- B41P2217/50—Printing presses for particular purposes
Abstract
The present invention relates to a screen printer. The screen printer comprises a base and a screen frame fixing structure used for fixing a screen frame on the base, wherein the screen fixing structure comprises a pressing piece used for pressing the screen frame, and the screen printer further comprises a movable mounting rack which is assembled on the base in a guiding and sliding mode along the left-right direction; the movable mounting rack is provided with a thermal printing head; the movable mounting frame is movably provided with a rubber roller mounting frame, a rubber roller is rotatably mounted on the rubber roller mounting frame, and the rubber roller extends along the front-back direction; avoidance channels are arranged in the rubber roll mounting frame and positioned outside the front side and the rear side of the rubber roll, and the avoidance channels are used for enabling the side edges extending left and right in the screen frame to penetrate through the screen frame along the left and right directions; the movable stroke of the rubber roller mounting frame comprises a working position of the rubber roller close to the thermal printing head and an installation position of the rubber roller far away from the thermal printing head; the screen printer further comprises a holding structure, and the holding structure is used for holding the rubber roller mounting frame at the working position.
Description
Technical Field
The present invention relates to a screen printer.
Background
The screen printing plate includes screen frame and screen fixed in the screen frame, and in the existent screen printing process, a photosensitive photoengraving plate is mostly used, and a positive film carrying image or letter is placed on the screen coated with photosensitive emulsion, and the photosensitive emulsion can be hardened after being irradiated by light, and irradiated by strong light, and the portion of screen which is not covered by positive film is hardened, and the portion which is not irradiated by light is not hardened. The uncured emulsion is then washed away to reveal the image or letter transferred from the positive to the screen. However, the photosensitive photoengraving mode has more production processes and is more complex.
Chinese utility model patent No. CN203305636U discloses a thermal sensitive screen printing plate, which prints out the required image on a thermal sensitive screen by a thermal printer, and then tightens and fixes the printed screen on a screen frame to form the screen printing plate. The thermal printer works on the principle that an image is formed on a thermal medium (such as a thermal screen in the patent) by using a hot spot generated by a thermal printing head, and a two-dimensional image can be finally formed by the relative movement of the thermal printing head and the thermal medium. The thermal printer further includes a rubber roller facing the thermal head for pressing the thermal medium against the thermal head so that heat generated from the thermal head can flow into the medium to form an image.
In the prior art, a required pattern can be printed on a thermal sensitive screen through a thermal printer, and compared with a photosensitive photoengraving mode, the method has the advantages of fewer processes and simplicity in manufacturing. Because the prior thermal printer can not print the screen printing plate with the screen frame, in the prior art, the screen is printed firstly, and then the screen is tightened and fixed on the screen frame, so that unexpected conditions such as image deformation and the like can occur in the tightening process, and images can not be accurately displayed.
Disclosure of Invention
The invention aims to provide a screen printer to solve the technical problem that images are easy to deform because a thermal printer in the prior art cannot print screens with screen frames.
In order to achieve the purpose, the technical scheme of the screen printer is as follows: a screen printer comprising:
a base;
the screen fixing structure is used for fixing the screen frame on the base, and the screen fixing structure comprises a pressing piece for pressing the screen frame;
the movable mounting rack is guided and slidably assembled on the base, and the sliding direction of the movable mounting rack is defined as the left and right direction;
the thermal printing head is arranged on the movable mounting frame;
the rubber roller mounting frame is movably assembled on the movable mounting frame, a rubber roller is rotatably mounted on the rubber roller mounting frame, the rubber roller extends along the front-back direction perpendicular to the left-right direction, and the rubber roller and the thermal printing head are respectively arranged on the upper side and the lower side of a silk screen in the screen frame when in use;
the screen printer is provided with an avoiding channel positioned outside the front side and the rear side of the rubber roll, and the avoiding channel is used for allowing the side edge extending left and right in the screen frame to penetrate through along the left and right direction;
the movable stroke of the rubber roller mounting frame comprises a working position where the rubber roller is close to the thermal printing head and an installation position where the rubber roller is far away from the thermal printing head, and when the rubber roller mounting frame is in the working position, the rubber roller is used for pressing the silk screen to the thermal printing head; when the rubber roll mounting frame is positioned at the mounting position, a channel for the side edge extending back and forth in the screen frame to pass through is formed between the rubber roll and the thermal printing head, so that the screen plate is placed between the rubber roll and the thermal printing head along the left and right directions;
the screen printer further comprises a holding structure, and the holding structure is used for holding the rubber roll mounting frame at the working position.
The invention has the beneficial effects that: the thermal printing head and the rubber roller are driven to synchronously move through the fixed screen printing plate, so that printing of a silk screen is realized. Avoidance channels are arranged on the front side and the rear side of the rubber roller, and the side edges extending left and right in the screen printing plate can penetrate through the avoidance channels. The rubber roller mounting frame is movably mounted on the movable mounting frame, a channel can be formed between the rubber roller and the thermal printing head when the rubber roller mounting frame is located at the mounting position, the side edge extending in the front and back direction of the screen plate passes through the channel along the left and right direction, and the screen plate is placed between the rubber roller and the thermal printing head. According to the invention, the avoiding channel and the movable rubber roll mounting frame are arranged, so that the screen printing plate can be placed between the rubber roll and the thermal printing head, and the rubber roll and the thermal printing head do not interfere with the screen frame when moving, and the screen printing plate can be suitable for screen printing with the screen frame. According to the invention, the rubber roller mounting frame can move relative to the movable mounting frame, compared with the mode that the thermal printing head is movably arranged on the movable mounting frame, the structure is simpler, the wiring problem of the thermal printing head does not need to be considered, the weight of the rubber roller mounting frame is smaller, and the rubber roller mounting frame is lighter and lighter during driving.
As a further optimized scheme, the rubber roller mounting frame is rotatably mounted on the movable mounting frame around an axis extending forwards and backwards;
the maintaining structure comprises a hanging shaft arranged on one of the rubber roll mounting frame and the movable mounting frame and a hook hinged on the other rubber roll mounting frame, and the hook is hooked on the hanging shaft when the rubber roll mounting frame is arranged at a working position so as to tension the rubber roll mounting frame downwards;
the retaining structure further comprises an elastic piece arranged between the rubber roll mounting frame and the movable mounting frame, and the elastic piece is used for applying upward elastic force to the rubber roll mounting frame.
The effect of this scheme lies in, can prevent through the cooperation of couple, peg that the rubber roll mounting bracket from upwards rotating, can prevent through the elastic component that the rubber roll mounting bracket from downwards rotating, cooperates jointly to realize keeping the position of rubber roll mounting bracket and rubber roll, makes the rubber roll keep in this position department when using.
As a further optimized scheme, the movable mounting frame is a U-shaped frame, the U-shaped frame comprises a bottom beam which is positioned below the silk screen when in use and extends forwards and backwards, the U-shaped frame also comprises two support arms which are arranged on the bottom beam, the two support arms are arranged at intervals forwards and backwards, and the support arms extend upwards and downwards;
the front end and the rear end of the rubber roll mounting rack are rotatably mounted on the two corresponding support arms, and the movable mounting rack and the rubber roll mounting rack form a closed frame.
The effect of this scheme lies in, and movable mounting has two arms, and movable mounting and rubber roll mounting bracket form closed frame, and the structure is compacter, and intensity is higher.
As the further scheme of optimizing, the rubber roll mounting bracket still includes two otic placodes of locating the crossbeam on one side of the thermal print head of orientation including the crossbeam that extends around, and two otic placodes are arranged along preceding back direction interval, the rubber roll rotates the assembly on two otic placodes, forms respectively between two otic placodes and the support arm that corresponds the side dodge the passageway.
The effect of this scheme lies in, installs the rubber roll through the otic placode of outstanding setting to form and dodge the passageway, structurally change the realization, compare the mode that the fluting realized dodging the passageway on the rubber roll mounting bracket, it is more convenient to process.
As a further optimized scheme, the rubber roll mounting frame comprises a cross beam extending forwards and backwards and side plates arranged at the front end and the rear end of the cross beam, and the side plates are hinged on the support arm;
the elastic part is a pressure spring fixed at the upper end of the support arm or on the side surface of the cross beam, and when the rubber roll mounting rack rotates to a working position, the pressure spring is elastically compressed between the support arm and the cross beam.
As a further optimized scheme, the rubber roll mounting frame comprises a cross beam extending from front to back and a synchronizing rod rotatably mounted on the cross beam, two hooks are fixedly mounted on the synchronizing rod, and the hanging shaft is arranged on each support arm corresponding to each hook.
The effect of this scheme lies in, through setting up the synchronizing bar, can make two couples cooperate the hook, convenient to use with the peg simultaneously.
As a further optimized scheme, one of the hooks is provided with an operating handle for driving the hooks and the synchronizing rod to rotate.
The effect of this scheme lies in, conveniently rotates the operation to the couple after setting up operating handle.
As a further optimized scheme, the rotating axis of the rubber roll mounting frame is deviated from one side of the left and right directions of the rubber roll mounting frame.
The effect of this scheme lies in, the aim at who sets up like this, just can realize the great linear displacement of great rubber roll through rotating less angle, can form great interval between rubber roll and thermal print head and supply the screen frame to pass through.
As a further optimized scheme, the screen printer further comprises a support plate arranged on the movable mounting frame, the support plate is positioned between the thermal printing head and the screen in the vertical direction when in use, the support plate is provided with through holes which are vertically corresponding to the thermal printing head, and the screen is pressed into the through holes by the rubber roller when in use;
the supporting plate is used for upwards supporting the silk screen so as to form upwards supporting for the silk screen at the left side and the right side of the rubber roller.
The effect of this scheme lies in, sets up the backup pad after, forms upwards to support at the left and right sides of rubber roll to the silk screen, forms the plane environment, and the rubber roll roof pressure silk screen downwards, through the cooperation of rubber roll and backup pad, can realize the bigger roof pressure force of silk screen, guarantees closely to laminate between silk screen and the thermal printer head and prints.
As a further optimized scheme, the left side and the right side of the supporting plate are both provided with flanges which are bent downwards.
The effect of this scheme lies in, and the turn-ups can prevent that the edge of backup pad from causing the fish tail to the silk screen.
Drawings
Fig. 1 is a perspective view (with a support plate removed) of a screen printer according to embodiment 1 of the present invention;
fig. 2 is a first perspective view of a screen printer according to embodiment 1 of the present invention in use;
fig. 3 is a second perspective view of the screen printer of embodiment 1 of the present invention in use;
fig. 4 is a first schematic view of the assembly of the movable mounting frame and the rubber roller assembly in embodiment 1 of the screen printer of the present invention;
fig. 5 is a second schematic view of the assembly of the movable mounting frame and the rubber roller assembly in embodiment 1 of the screen printer of the present invention;
fig. 6 is a third schematic view of the assembly of the movable mounting frame and the rubber roller assembly in embodiment 1 of the screen printer of the present invention;
FIG. 7 is a schematic view of the support plate of FIGS. 2 and 3;
description of reference numerals: 100-a base; 200-a flexible mounting frame; 21-bottom beam; 22-a support arm; 31-a guide bar; 32-a screw rod; 400-a thermal print head; 500-glue roller assembly; 51-a rubber roll mounting rack; 511-beam; 512-side plate; 513-connecting plates; 514-a synchronization rod; 515-ear plate; 52-rubber roller; 53-hook; 54-hanging the shaft; 55-guide pillar; 56-pressure spring; 57-operating handle; 61-a support frame; 62-quick clamp; 63-left and right positioning plates; 64-front and rear positioning plates; 700-screen printing; 71-a screen frame; 72-wire mesh; 81-a support plate; 82-perforation.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
Embodiment 1 of a screen printer of the present invention:
as shown in fig. 1 to 7, in the screen printer of the present embodiment, the screen 700 is fixed and the thermal head 400 and the blanket roller assembly 500 are moved in synchronization with each other, so that a desired pattern is printed on the screen of the screen 700.
The screen printer includes a base 100, a movable mounting frame 200 slidably mounted on the base 100, and a horizontal direction perpendicular to the horizontal direction is defined as a left-right direction and a front-back direction, the sliding direction of the movable mounting frame 200 being defined as a left-right direction. As shown in fig. 1, a guide bar 31 is fixed to the base 100, the guide bar 31 extends left and right, and two guide bars 31 are arranged at intervals in the front-rear direction. A sliding sleeve is fixedly installed at the bottom of the movable mounting frame 200, and the sliding sleeve is guided and sleeved on the guide rod 31, so that the movable mounting frame 200 can move in a left-right guiding manner. In other embodiments, the left and right guiding of the movable mounting frame can be realized by installing a sliding sleeve on one side of the movable mounting frame and arranging a guide rod on the corresponding position on the base.
In this embodiment, in order to drive the movable mounting frame 200 to move left and right, the screw nut mechanism is provided, the screw nut mechanism includes a nut fixed at the bottom of the movable mounting frame 200 and a screw rod 32 extending left and right, the screw rod 32 is assembled with the nut through threads, and the movable mounting frame 200 can be driven to move left and right by rotating the screw rod 32. To drive the screw 32 to rotate, a motor (not shown) is mounted on the base 100.
The structure of the flexible mounting frame 200 is shown in fig. 1, the flexible mounting frame 200 is a U-shaped frame, and includes a bottom beam 21 at the bottom and support arms 22 located at the front and rear ends of the bottom beam 21, the lower ends of the support arms 22 are fixed on the bottom beam 21, and the support arms 22 extend up and down.
As shown in fig. 1, the thermal print head 400 is fixedly mounted on the bottom beam 21, and the thermal print head 400 is a commercially available thermal print head, which is not described herein again.
As shown in fig. 1, 4, 5 and 6, a rubber roller assembly 500 is rotatably mounted on the support arm 22, the rubber roller assembly 500 includes a rubber roller mounting frame 51, the rubber roller mounting frame 51 is a structure extending forward and backward as a whole, a rubber roller 52 is rotatably mounted on the rubber roller mounting frame 51, the rubber roller 52 extends in the forward and backward directions, and the rubber roller 52 can rotate around its own axis. After assembly, the rubber roller 52 is positioned above the thermal print head 400, and presses the screen 72 against the thermal print head 400, so as to ensure the printing effect. After the glue roller assembly 500 is mounted to the arm 22, the glue roller assembly 500 and the flexible mount 200 form a closed frame that is stronger and lighter in weight.
The structure of the rubber roller mounting frame 51 is as shown in fig. 4 to 6, the rubber roller mounting frame 51 is a plate as a whole, the rubber roller mounting frame 51 includes a cross beam 511, the cross beam 511 extends forwards and backwards, side plates 512 are integrally formed at two ends of the cross beam 511 by bending, the side plates 512 are located at the outer sides of the two support arms 22 opposite to each other, the side plates 512 are rotatably mounted on the support arms 22, and the rotation axis extends forwards and backwards. Two ear plates 515 extend downward from the cross beam 511, the two ear plates 515 are arranged in the front-rear direction, and the rubber roller 52 is rotatably mounted on the two ear plates 515. As shown in fig. 4, after installation, the two ear plates 515 are spaced from the arm 22 by a distance that forms an escape passage for the left and right extending sides of the screen frame 71 to pass through in the left and right direction. Two connecting plates 513 are fixed at the bottom of the cross beam 511, and the two connecting plates 513 are arranged at intervals along the front-back direction. A synchronizing bar 514 is rotatably mounted to the two connecting plates 513, the synchronizing bar 514 extends forward and backward, and the synchronizing bar 514 penetrates the ear plate 515.
The rubber-covered roller mounting frame 51 is rotatably mounted on the support arm 22 through the side plate 512, when the rubber-covered roller mounting frame 51 rotates upwards, the rubber-covered roller 52 is far away from the thermal print head 400, a large channel is formed between the rubber-covered roller 52 and the thermal print head 400, and at the moment, the screen frame 71 can penetrate through the channel along the left-right direction, so that the screen 72 is positioned between the rubber-covered roller 52 and the thermal print head 400. When the rubber roller mount 51 rotates downward, the rubber roller 52 approaches the thermal head 400 gradually, and when the rubber roller 52 is aligned up and down with the thermal head 400, the rubber roller 52 presses the screen 72 toward the thermal head 400.
In this embodiment, as shown in fig. 4 and 6, the rotation axis of the rubber roller mounting frame 51 is offset to one side of the rubber roller mounting frame 51 in the left-right direction, so that the purpose and advantage of this arrangement are that when the rubber roller mounting frame 51 rotates by a small angle, the rubber roller 52 can obtain a large linear displacement, a wide channel is formed between the rubber roller 52 and the thermal print head 400, and the installation of the screen frame 71 is facilitated.
In order to keep the rubber roller 52 at the position for pressing the screen 72, a holding structure is provided in the present embodiment, specifically, as shown in fig. 4 to 6, the holding structure includes a hook 53, the hook 53 is fixed on the synchronizing rod 514, a hanging shaft 54 is fixed on the support arm 22, when the hook 53 rotates to the end with the rubber roller mounting frame 51, the hook 53 can be hooked on the hanging shaft 54, and the rubber roller mounting frame 51 cannot rotate upwards. In order to prevent the rubber roller mounting frame 51 from continuing to rotate downwards, an elastic element is arranged between the support arm 22 and the rubber roller mounting frame 51, upward elastic force is applied to the rubber roller mounting frame 51, the elastic element is a compression spring 56, a guide post 55 is fixed at the upper end of the support arm 22, and the compression spring 56 is sleeved on the guide post 55. In other embodiments, the pressure spring may be fixed on the cross beam 511 of the rubber roller mounting frame 51, and in other embodiments, the elastic member may be a rubber block or the like.
When the rubber roller mounting frame 51 is rotated upward, the hook 53 is rotated to separate the hook 53 from the hanging shaft 54, and then the rubber roller mounting frame 51 is rotated, and in order to facilitate the rotation of the hook 53, as shown in fig. 6, an operation handle 57 is integrally formed on the hook 53.
In this embodiment, the operation handle 57 is integrally formed on the hook 53, and the side plate 512 is integrally formed on the cross beam 511 by bending.
In this embodiment, as shown in fig. 4 to 6, a support plate 81 is further mounted on the bottom beam 21, and the support plate 81 is located between the thermal print head 400 and the rubber roller 52. The supporting plate 81 is structured as shown in fig. 7, a through hole 82 is formed on the plate surface of the supporting plate 81, the through hole 82 is arranged opposite to the thermal print head 400 up and down, and the rubber roller 52 can press the screen 72 into the through hole 82 for thermal printing. As shown in fig. 7, in order to prevent the supporting plate 81 from scratching the silk screen when moving along with the flexible mounting frame 200, the supporting plate 81 has flanges on both left and right sides.
As shown in fig. 1 to 3, the screen printer further includes a screen fixing structure, and the screen fixing structure fixes the screen 700 on the base 100. The screen fixing structure comprises a support frame 61, and the support frame 61 is provided with two positions which are arranged at intervals along the left and right direction. The screen fixing structure further comprises left and right positioning members, wherein the left and right positioning members are left and right positioning plates 63, and the left and right positioning plates 63 are located on one of the supporting frames 61. In other embodiments, the left and right positioning elements may be positioning blocks. The screen fixing structure further comprises front and rear positioning members, the front and rear positioning members are front and rear positioning plates 64, and the front and rear positioning plates 64 are located on the support frame 61 where the left and right positioning plates 63 are located. In other embodiments, the front and rear positioning members may be positioning blocks. The screen 700 can be positioned and placed by the left and right positioning plates 63 and the front and rear positioning plates 64, and the quick clamp 62 is mounted on the side opposite to the left and right positioning plates 63 in the left and right direction, and the quick clamp 62 can press the screen frame 71 against the left and right positioning plates 63. In other embodiments, the quick clamp can be placed at a position opposite to the front and rear positioning pieces along the front and rear direction, and the screen frame is clamped through the cooperation of the quick clamp and the front and rear positioning pieces. In other embodiments, two quick clamps can be provided to achieve front and back clamping and left and right clamping.
When the thermal printing machine is used, the rubber roll mounting frame 51 is rotated upwards, the screen 700 is placed between the rubber roll 52 and the thermal printing head 400 along the left-right direction, the screen 700 is fixed by the screen fixing structure, the rubber roll mounting frame 51 is rotated downwards, the rubber roll 52 presses the silk screen 72 towards the thermal printing head 400, then the movable mounting frame 200 is driven to move left and right, and the required patterns are printed on the silk screen 72.
It should be noted that the front-back, left-right, and up-down in the present embodiment are merely relative concepts, and do not limit the structure of the screen printer.
In this embodiment, when the rubber roller 52 cooperates with the thermal print head 400 to print a screen, the rubber roller mounting frame 51 is in the working position, and when the rubber roller 52 is far away from the thermal print head 400 and the screen 700 is left and right inserted, the rubber roller mounting frame 51 is in the mounting position.
In this embodiment, the rapid clamp 62 forms a pressing member capable of pressing the screen frame 71, and in other embodiments, the pressing member may be an oil cylinder, an air cylinder, an electric push rod, or the like.
The embodiment 2 of the screen printer of the present invention:
in embodiment 1, the screen fixing structure realizes positioning and clamping by the left and right positioning parts, the front and rear positioning parts, and the fast clamp, in this embodiment, the clamping direction of the fast clamp can be up and down, and when the screen fixing structure is pressed up and down, at least two fast clamps are provided.
Embodiment 3 of the screen printer of the present invention:
in embodiment 1, the supporting plates are arranged, the screen is supported upwards on the left side and the right side of the rubber roller, and the rubber roller presses the screen downwards to form cooperation, so that the rubber roller can exert enough pressing force on the screen, and the printing effect is ensured. In this embodiment, the supporting plate can be eliminated, and the top pressing is carried out only by the rubber roller.
Embodiment 4 of the screen printer of the present invention:
in embodiment 1, the rotation axis of the rubber roller mounting frame is offset to one side of the left and right directions of the rubber roller mounting frame, and in this embodiment, the rotation axis of the rubber roller mounting frame may be located at the middle position of the left and right directions of the rubber roller mounting frame, and may also drive the rubber roller to be far away from or close to the thermal print head.
Embodiment 5 of the screen printer of the present invention:
in the embodiment 1, the rubber roll mounting frame is kept at the working position by arranging the hooks, the hanging shaft and the elastic piece, and the two hooks on the two sides realize synchronous rotation through the synchronous rod. In this embodiment, only one hook is reserved, and the hook is rotatably mounted on the rubber roll mounting frame.
Embodiment 6 of the screen printer of the present invention:
in embodiment 1, the hook is arranged on the rubber roll mounting frame, and the hanging shaft is arranged on the support arm.
in embodiment 1, adopt couple, peg and elastic component, keep the rubber roll mounting bracket at the work position, in this embodiment, keep the structure can be unsmooth cooperation structure, specifically, set up the arch on the curb plate, set up the recess on the support arm, when the rubber roll mounting bracket rotated the work position, the arch stretched into in the recess, kept the rubber roll mounting bracket at the work position. Or, pin holes can be arranged on the rubber roll mounting frame and the movable mounting frame, when the rubber roll mounting frame is positioned at the working position, the two pin holes are correspondingly communicated, and then a pin is used for penetrating the pin holes to keep the rubber roll mounting frame at the position.
in embodiment 1, the movable mounting frame is a U-shaped frame, and includes a bottom beam and two support arms, and the rubber roll mounting frame is rotatably mounted on the support arms.
Embodiment 9 of the screen printer of the present invention:
in embodiment 1, the lug plate is protrudingly arranged on the cross beam, and the avoiding channel is formed in the rubber roll mounting frame.
Embodiment 10 of the screen printer of the present invention:
in embodiment 1, the rubber roll mounting frame is rotatably mounted on the movable mounting frame, and in this embodiment, the rubber roll mounting frame is movably mounted on the movable mounting frame in the up-down direction, for example, the rubber roll mounting frame is inserted into the movable mounting frame, and in order to keep the rubber roll mounting frame at the working position, a jackscrew is arranged on the movable mounting frame to tightly jack and fix the rubber roll mounting frame. Or the rubber roll mounting frame and the movable mounting frame are both provided with jacks, and the rubber roll mounting frame is kept at the working position through the bolt.
Embodiment 11 of the screen printer of the present invention:
in embodiment 1, the reciprocating drive of the movable mounting frame is realized by using a screw nut mechanism, but in this embodiment, the reciprocating drive of the movable mounting frame can be realized by using a hydraulic cylinder, an air cylinder, an electric push rod, or the like.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. A screen printer is characterized in that: the method comprises the following steps:
a base;
the screen fixing structure is used for fixing the screen frame on the base, and the screen fixing structure comprises a pressing piece for pressing the screen frame;
the movable mounting rack is guided and slidably assembled on the base, and the sliding direction of the movable mounting rack is defined as the left and right direction;
the thermal printing head is arranged on the movable mounting frame;
the rubber roller mounting frame is movably assembled on the movable mounting frame, a rubber roller is rotatably mounted on the rubber roller mounting frame, the rubber roller extends along the front-back direction perpendicular to the left-right direction, and the rubber roller and the thermal printing head are respectively arranged on the upper side and the lower side of a silk screen in the screen frame when in use;
the screen printer is provided with an avoiding channel positioned outside the front side and the rear side of the rubber roll, and the avoiding channel is used for allowing the side edge extending left and right in the screen frame to penetrate through along the left and right direction;
the movable stroke of the rubber roller mounting frame comprises a working position where the rubber roller is close to the thermal printing head and an installation position where the rubber roller is far away from the thermal printing head, and when the rubber roller mounting frame is in the working position, the rubber roller is used for pressing the silk screen to the thermal printing head; when the rubber roll mounting frame is positioned at the mounting position, a channel for the side edge extending back and forth in the screen frame to pass through is formed between the rubber roll and the thermal printing head, so that the screen plate is placed between the rubber roll and the thermal printing head along the left and right directions;
the screen printer further comprises a holding structure, and the holding structure is used for holding the rubber roll mounting frame at the working position.
2. The screen printer of claim 1, wherein: the rubber roller mounting frame is rotatably mounted on the movable mounting frame around an axis extending forwards and backwards;
the maintaining structure comprises a hanging shaft arranged on one of the rubber roll mounting frame and the movable mounting frame and a hook hinged on the other rubber roll mounting frame, and the hook is hooked on the hanging shaft when the rubber roll mounting frame is arranged at a working position so as to tension the rubber roll mounting frame downwards;
the retaining structure further comprises an elastic piece arranged between the rubber roll mounting frame and the movable mounting frame, and the elastic piece is used for applying upward elastic force to the rubber roll mounting frame.
3. The screen printer of claim 2, wherein: the movable mounting frame is a U-shaped frame, the U-shaped frame comprises a bottom beam which is positioned below the silk screen when in use and extends forwards and backwards, the U-shaped frame also comprises two support arms which are arranged on the bottom beam, the two support arms are arranged at intervals forwards and backwards, and the support arms extend upwards and downwards;
the front end and the rear end of the rubber roll mounting rack are rotatably mounted on the two corresponding support arms, and the movable mounting rack and the rubber roll mounting rack form a closed frame.
4. The screen printer of claim 3, wherein: the rubber roll mounting bracket still includes two otic placodes of locating the crossbeam on one side of the thermal print head of orientation, and two otic placodes are arranged along preceding back direction interval, the rubber roll rotates the assembly on two otic placodes, forms respectively between two otic placodes and the support arm that corresponds the side dodge the passageway.
5. The screen printer of claim 3, wherein: the rubber roll mounting frame comprises a cross beam extending forwards and backwards and side plates arranged at the front end and the rear end of the cross beam, and the side plates are hinged to the support arms;
the elastic part is a pressure spring fixed at the upper end of the support arm or on the side surface of the cross beam, and when the rubber roll mounting rack rotates to a working position, the pressure spring is elastically compressed between the support arm and the cross beam.
6. The screen printer of claim 2, wherein: the rubber roll mounting bracket includes the crossbeam that extends around, still includes to rotate the synchronizing bar of installing on the crossbeam, fixed mounting has two on the synchronizing bar the couple, all be equipped with corresponding to each couple on each support arm the peg.
7. The screen printer of claim 6, wherein: one of the hooks is provided with an operating handle for driving the hook and the synchronizing rod to rotate.
8. The screen printer according to any one of claims 2 to 7, wherein: the rotating axis of the rubber roll mounting rack is deviated from one side of the left and right directions of the rubber roll mounting rack.
9. The screen printer according to any one of claims 1 to 7, wherein: the screen printer also comprises a support plate arranged on the movable mounting frame, the support plate is positioned between the thermal printing head and the silk screen in the vertical direction when in use, the support plate is provided with a through hole which is communicated up and down, the through hole is vertically corresponding to the thermal printing head, and the silk screen is pressed into the through hole by the rubber roller when in use;
the supporting plate is used for upwards supporting the silk screen so as to form upwards supporting for the silk screen at the left side and the right side of the rubber roller.
10. The screen printer of claim 9, wherein: the left side and the right side of the supporting plate are both provided with flanges which are bent downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010598555.6A CN111703195B (en) | 2020-06-28 | 2020-06-28 | Screen printer |
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| CN202010598555.6A CN111703195B (en) | 2020-06-28 | 2020-06-28 | Screen printer |
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| CN111703195A true CN111703195A (en) | 2020-09-25 |
| CN111703195B CN111703195B (en) | 2022-02-18 |
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Cited By (5)
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| CN113524879A (en) * | 2021-08-19 | 2021-10-22 | 曲阜市玉樵夫科技有限公司 | Control system and control method for screen plate making machine |
| CN113524877A (en) * | 2021-08-18 | 2021-10-22 | 曲阜市玉樵夫科技有限公司 | Printing assembly of silk screen plate-making machine and control method thereof |
| CN113524878A (en) * | 2021-08-19 | 2021-10-22 | 曲阜市玉樵夫科技有限公司 | Silk screen plate making machine and manufacturing method thereof |
| CN113715488A (en) * | 2021-08-19 | 2021-11-30 | 曲阜市玉樵夫科技有限公司 | Screen stencil and printing method thereof |
| CN114940017A (en) * | 2022-06-08 | 2022-08-26 | 深圳市君派伟业有限公司 | Digital spraying machine for manufacturing screen printing plate |
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|---|---|
| CN111703195B (en) | 2022-02-18 |
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